Sadly, I can't get the game on the site, but these are a bunch of links! Let me know which ones work and don't work!
https://poki.com/en/g/crossy-road
https://sites.google.com/site/yourunblockedgames/home/crossy-road (low quality but unblocked 100%)
https://kizi.com/games/crossy-road
https://www.miniclip.com/games/crossy-road/en/